An account under the Free Tier can launch all the same services and resources as a similar account that is not covered by the Free Tier, and no services or resources are exclusive to accounts covered by the Free Tier. The only difference is that under the Free Tier, certain types and amounts of usage are covered for free.

When the Free Tier expires, all usage on your account is billed at normal rates. This means that if you're testing services that are covered by the Free Tier, but don't intend to continue using those services in the future, you should delete, stop, or terminate those resources to avoid unnecessary billing. See that service's documentation for information on how to delete, stop, or terminate its resources.

If you want to keep all the resources on your account and accept that the resources will be billed at normal rates, you don't need to take any action.

If you've tested AWS service offerings using the Free Tier, have decided that AWS isn't for you, and now you want to make sure you don't incur any charges for AWS services, you can delete the resources on your account, and then close your account.